antenna


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antenna

 [an-ten´ah] (pl. anten´nae)
one of the appendages on the head of arthropods.

antenna

(ăn-tĕn′ə)
n. pl. an·tennae (-tĕn′ē)
1.
a. Zoology One of the paired, flexible, segmented sensory appendages on the head of an insect, myriapod, or crustacean functioning primarily as an organ of touch.
b. Something likened to this sensory appendage, as in function or form: sensitive public relations antennae.
2. A structure in a photosynthetic organism containing pigment molecules that absorb light energy and transfer it to a reaction center composted of proteins and pigments, where the light energy is converted into chemical energy.

an·ten′nal adj.

antenna

Imaging
An MRI term for the component of a scanner that sends and/or receives  electromagnetic waves.

Vox populi
A popular term for the instinct that some people have for detecting subtle clues in interpersonal relationships.

antenna

(pl. antennae) usually one of a pair of many-jointed, whip-like structures present on the head of many arthropods, particularly insects (first appendage on head) and crustaceans (second appendage). Antennae have a sensory function, though in some crustaceans they are used for attachment or swimming.
References in periodicals archive ?
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At the same sizes of radiating patch (parameters P) and height of substrate (parameter H), another three antenna prototypes are implemented for comparing with the proposed antenna: antenna with vertical ground and square-ring patch (antenna 1), antenna without vertical ground and with square-ring patch (antenna 2), and conventional corner truncated square patch antenna [5] (antenna 3).
c) Antenna efficiency: It is a ratio of total power radiated by an antenna to the input power of an antenna.